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Main Title Structural Characterization of Reactive Dyes Using Liquid Secondary Ion Mass Spectrometry/Tandem Mass Spectrometry.
Author Richardson, S. D. ; Thruston, A. D. ; McGuire, J. M. ; Weber, E. J. ;
CORP Author Environmental Protection Agency, Athens, GA.
Publisher May 93
Year Published 1993
Report Number EPA/600/J-93/423;
Stock Number PB94-101748
Additional Subjects Water pollution detection ; Reactive dyes ; Molecular structure ; Textile processes ; Mass spectroscopy ; Waste water ; Ions ; Sulfur oxides ; Chemical bonds ; Chemical analysis ; Reprints ; Reactive Blue 19 ; Chemical reaction mechanisms ; Liquid secondary ion mass spectrometry ; Tandem mass spectrometry ; Sulfone/vinyl
Library Call Number Additional Info Location Last
NTIS  PB94-101748 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 9p
Reactive dyes have become a concern of the EPA. Currently, methods are being sought to characterize and identify these reactive dyes and their transformation products, in order to predict their transport, transformation and potential fate and effects in receiving waters. Reactive Blue 19 (RB 19), its reactive form (RB 19-VS) and its hydrolyzed form (RB 19-OH) were examined using liquid secondary ion mass spectrometry/tandem mass spectrometry (LSIMS/MS/MS) in the negative-ion mode under low-energy collision conditions (240-300 eV). Structurally characteristic fragment ions were obtained, none of which has been previously reported for these reactive dyes. Among the ions obtained were SO3(-) ions, ions due to central amino cleavage and reactive group cleavage, and ions due to loss of SO3 and SO2. Possible pathways for the formation of product are proposed. The structural information obtained should help to characterize and identify reactive dyes better.